The Grid Arbitrator | 250A 4-Pole Dual-Power Transfer Switch

Risparmia 20%
East Supplier PlatformSKU:32646591832-250 4P-CHINA

Color: 250 4P
Prezzo:
$398.37 $497.96

spese di spedizione calcolata al pagamento

Disponibilità:
Disponibili (584 pezzi), pronti per essere spediti

Descrizione

Power does not fail politely. It fails at the moment the load matters most, when a generator has to pick up a workshop floor, a cold room, or a pump house without a second of doubt. The Grid Arbitrator is built for that second. It watches both incoming sources, reads which one is alive, and commits the whole panel to the source worth trusting.

The SKT1 control board carries two ratings in one body, 250A and 300A, wired for AC 220V control and configured for single-phase or three-phase distribution. The four-pole layout switches three phases plus neutral together, which keeps motors, inverters, and control boards from seeing an open neutral while the changeover happens. Contact assemblies are sized for the inrush that comes with a diesel set starting under load, not just for steady-state nameplate current.

Installation stays inside familiar territory. The board mounts into standard distribution cabinets, accepts customized wiring configuration on request, and sits alongside the AISIKAI and SHALUO generator parts family that maintenance teams already keep on the shelf. Set the source priority once. After that, the switch works the night shift alone.

Sources change. The load never notices.


Key Features

  • ✦ Four-pole switching covers three phases plus neutral, so no phase drifts during a changeover.
  • ✦ Two current ratings, 250A and 300A, covering the cabinet sizes most common in small industrial installations.
  • ✦ AC 220V control circuit works with single-phase and three-phase distribution.
  • ✦ Tuned for diesel generator changeover, including the starting inrush of motor loads.
  • ✦ Control board format fits standard panel cutouts and existing ATS enclosures.
  • ✦ Customized configuration available on both the SKT1-250/4P and the SKT1-300/4P.
  • ✦ Supplied as a serviceable board assembly, so a spare can be stocked without buying a whole switchgear unit.

Technical Specifications

  • Brand: AISIKAI / SHALUO
  • Series: SKT1
  • Model Numbers: SKT1-250/4P and SKT1-300/4P
  • Rated Current: 250A or 300A, depending on model
  • Poles: 4P (three phases plus neutral)
  • Control Voltage: AC 220V
  • Phase Compatibility: Single-phase and three-phase systems
  • Function: Dual power automatic transfer switch
  • Primary Application: Diesel generator changeover and mains standby
  • Customization: Available (is_customized: yes)
  • Mounting: Control board, panel or distribution cabinet
  • Category: Power distribution switching equipment / generator parts
  • Origin: Mainland China

Where It Belongs

Standby power panels for workshops, cold storage, water treatment rooms, telecom cabinets, and small production lines where the mains and the generator must never argue in public. Also a practical spare for maintenance teams servicing diesel generator sets, because the board drops into existing ATS enclosures rather than forcing a cabinet rebuild.

Frequently Asked Questions

Q: What is the difference between the 250A and 300A models?

Only the rated current differs. Both use the same SKT1 control board platform, the same 4-pole layout, and the same AC 220V control circuit. Choose by the size of your service entrance and the locked-rotor current of the largest motor on the panel.

Q: Will it switch a three-phase load?

Yes. The 4P layout switches three phases plus neutral as one action, which is what three-phase distribution needs. The same unit also serves single-phase installations.

Q: Is it suitable for a diesel generator with an automatic start controller?

It is built around generator changeover, with the control circuit running at AC 220V, so it pairs with common genset controllers and changeover panels.

Q: What does the is_customized field mean here?

The factory accepts modified wiring and configuration for the SKT1 board. Tell us your phase count, current rating, and control arrangement before ordering and we will confirm what can be built.

Q: What should I confirm before ordering?

Three things: phase configuration, required rated current (250A or 300A), and control voltage. Send those and we will match the model to your panel.

Q: How is the unit installed?

It is an electrically operated control board, mounted inside a distribution cabinet and wired to both sources and the load. A qualified electrician should commission the changeover and verify source priority on site.

Q: Does a four-pole switch cost more than a three-pole version?

It can, because the fourth pole carries the neutral and its contact set is sized to match. For three-phase loads that include drives, inverters, or electronic controls, switching the neutral is what protects the equipment during a transfer, so in most panels it is the safer specification.

The EastSupplier Promise

Every board is checked before dispatch and shipped with tracked international delivery. Order confirmations include a configuration review, so the rated current, phase layout, and control voltage are verified against your panel before the box leaves the warehouse. Spare parts for the AISIKAI and SHALUO generator family are available on request.

Customer Reviews

Customer Reviews

Based on 3 reviews
67%
(2)
33%
(1)
0%
(0)
0%
(0)
0%
(0)
J
Jonas K.
Bought one as a spare

Two units: one installed on a cold storage site, one on the shelf as a spare. A few hours of downtime avoided for the price of a board. Source priority was set once and it has run unattended.

E
Elena R.
The neutral pole is why I bought it

The fourth pole was the deciding factor for a panel with VFDs on it. Switching the neutral is the whole point of this spec. Terminal layout takes a little planning before you wire it.

M
Marcus T.
Panel went in over a weekend

Ordered the 300A for a standby panel feeding two workshop lines. It dropped into the existing cabinet and the changeover between mains and the generator is clean, with no flicker on the drives.

Payment and Security

PayPal

Le tue informazioni di pagamento vengono elaborate in modo sicuro. Non memorizziamo i dettagli della carta di credito né abbiamo accesso alle informazioni della tua carta di credito.

Previsione di spedizione

You may also like

Recently Seen